A site I go to is giving away two copies of NCAA Football 13 (one per system). All you got to do is sign up to the site, and post in the corresponding thread. The official posting is below.
I got this code for a free download for something in GT5, but I don't have a PS3 so I'm giving it away. To get the DLC do the following.
1. Go to www.Schick.com/GT5
2. Enter the code SB7C18B7XG
Enjoy.